Gas soldering iron



u L. E N W A c M 0 Aug. 14, m3.

GAS SOLDERING IRON Original F1196 March 23, 1921 C/mr/es/Y. Cam

Patented Aug. it, 1923.

main smi To all whom it may concern:

Be it known that I, CHARLES 'M. CARNELLI, a citizen of the United States, and a resident of New York, inthe county and State of New York, have invented a new and im proved Gas Soldering Iron, of which the following is a specification.

My invention is an improved gas soldering iron.

It has for its object to provide a soldering iron of such construction that its efiiciency can be relied on to successfully meet the various conditions that arise. in actual practice. I This main objectI accomplish by the production of a tool which is simple in construction, economic to manufacturebecause of the saving of material called for in its structure, and which, on account of its completeand perfect consumption of fuel, does away with practically all waste of gas and gives a maximum amount of heat tothe solderer.

The efficiency of the tool is also considerablyaugmented by the ease and quickness with which the solderer is brought to work ing heat, thus saving the time of the work man which is now lost by the slowness in this respect of other tools of this general type.

The time spent in retinning and reforging soldering tools now more or less in vogue, is also an important matter in practical work which my improved'devices reduces to a minimum. For instance, my device maynot need retinningm'ore than once in two or three days, whilethe ordinary tool requires this processa-number of times daily. 7

Another important item is the saving in gas 'elfected by my device, tests having shown that in its practical operation there.

is a saving'of about seventy-five per cent of gas over'that of tools of this general type.

Referring to the embodiment of my in vention illustrated in the drawings, wherein similar reference numerals refer to like parts, Figure '1 is an elevation of'my complete soldering iron; Figure 2 is a vertical section through the centre of Fig. 1, and Figure '3 is 'a horizontal section on the line A-'A of;Fig.'2.'- w

'In the a-drawing's'the soldering iron is, shown in its assembled form, but it is to be understood that it consists of handle, housing or combustion chamber, mixing chamber,

GAS) soLnEame IRON.

Application filed March 2a, 1921, semi No. 454,794. Renewed January 10; 1923.

a pierced plug or jet member and solderer or soldering tip, which parts can of course be separated or assembled at will.

a aiai sent was.

CHARLES M. C ARnTELLI, oFN w YORK, 1a. Y.

As shown in the drawings, the handle of my device is hollow throughout the greater part ofits length, and is made up of the outer wooden hold 1, and two steel tubes 2 and 3, with an air space 19 between them.

Mounted in the inner tube,'which tapers 'sl1ghtly,-is a jet member 4, which projects into the mixing chamber 5, located. in the housing or combustion chamber 6."; The housing 6 1s mounted or'coupled in any dcsired way on the outer tube 3. It will be noticed that by this construction a wall of air is interposed between'the wall supporting the jet member and that on which the housing is mounted, the advantage of which Will presently appear. At the upper end of mi$zmg chamber 6 is a, shield 7 whose object is hereinafter explained. a

' 8 is thesolderer or soldering tip which, as

shown, is removable and adjustable.- It is plrieferably made of copper or any suitable a 0y.

In the outer steel tube 3 forming part of the handle, are apertures 9 for the admission of air which, while helping to maintain the handle in a cool condition,-also prevents heat conducted from the solderer and housing, from reaching the inner wall to any appreciable extent, thus keeping the jet member cool and free from any tendency to ignite. Holes or openings 10 are located in the lower part of the housing to further assist in this object.

In the mixing chamber are openings'll of such size as to secure an efl'icient mixture of gas and air for supplying uniform heat to the solderer, regardless of the position in which the tool is held while in use.

1 The soldering tip may be attached to the housing in any suitable way. The method illustrated in the drawings is by means of screws 21. I consider'it an advantage to make the soldering tip adjustable so that the length of flame travel can be regulated, and increased or diminished in accordance with the needs of any particular case. For this purpose the soldering tip is provided with upper and lower sets of screw holes 12, the set farthest from the tip being used when it is desired to lengthen the flame travel, both being used at other times. 13 and Marc holes inclining upward'from the tip of the solderer', which serve the double'pur'pose' of s b01651 reslinclined'upward from the tip, and" assisted by the air coming through the aperituresiln the-combustion chamber, an intense;

- equal ease andeiiiciency.

carrying off the products of combustion, and for providing the necessary atmospheric pressure. when the tool is used in a down ward vertical position.

-15, 16, 17 and 18 indicate elongatedaper tures in the housing. r m-Emm construct the housing of light iron, and make the, apertures as large as possible consistent with proper strengtlrot..,the, tool, Inthisway secure a most" eflicient' combustion chamber with, the least amount of material, and min imizethe heat conducted {from the copper, solderer While/II preter to make-the hensing'ot quadrangulali shapeit may at course be. made c rcularm form without the sacrie fice of eificiency. g V f improveddevice operatesas follows, A lQterthe, source of supply is coupled in, any usual .way atZO to; inner tube? of the handle, the gasunder pressure, flows through; said tube2 to jet memberi l; iandmixing; chamber 5', drawing air withit through aper turesfll. It. is, ignited as"it,-leaves-5 and,

blue flame results, indicating complete come,

' bastion, and the solderer is speedily heated;-

to the necessary intensity and ready 1 for work." It canbeused in any posit onwith;

This is so even WllQILlilwlS-USQCllTl a ver tical;downward position; which isiwhere the ordinary solderer' is ayfailurew Vi hen in the c'ourse of the work and after:- the solderer has become red hot, it is found} necessary to use the tool inja" downward Vertical, or substantiallyvertical, position,- the blue orhea-ting flame tends to --back up on'itself, This in a toolof ordinary con-z struction, would cause the heat waves to flow around thejet member. land cause'the same to ignite, with-the consequent productionjof a yellow orlighting flame from thetip "5,-- which would mean that the heat in the solderer had been reduced and moreorless cooled a nd its. efiicienoy decreased. My-l'inproved. construction, however, makes this til-Q steel tube otthe handle, it is protected by.

impossible, Ina certain sense the jet, mem ber s lsolated. Being mounted onthe inner the air, barrier 19, and the air holes ,10 in the lower part, and theapertures 16,17 and 1,8 in-the body, of the housing, asywell as the openings. 9 in the outer tube of the hair dle, assist in dissipating the heat and prex' enting its-conduction to, the-valve.

1 Furthermore the shield 7: receives andidefliectssuch heat waves; as rise while'the device, is held in 3 a vertical downwardposition, so that the -.a:mount; otheat, if any, reaching the jet-memben is negligible .The holes 135and 14' inthe solderer arealso ofamateriial assistance in" overcoming this trouble of flooding, a it is called. These tip of the-m jlg chambers asg'andlfor the permit the outside atmosphere to exert the necessary pressure in the needed direction, 7

and maintain the proper imixture.v

' The solderer may be made of any size or shape, and it is evident that various changes may be; made in the eonstrmition illustrated Without departing'from the principle of my invention; Wh le claimv asnew. anddesire to secure by Letters Patent, isz i A {1218 old na n compris ng hollow soldering tip havinga,plurality'of openings, acasing with apertures th rein,

mixing chamber and jet member within, cast ng, and a handle conslsting'ot t otubular, members with an air space between.-

them, said casingbeing=-monnted on oneot sa d members,;an d -means for; connectinga members, said jet mounted atthe inner end Vsource'ot fuel supply to the other otsaid 5, the a t'm n i fied m m er, an the ar a ,fice through it being much smaller'than the,

opening in; the fuel supply member,substan} tially as described.

A; gas soldering} roncompris ngfa soldering tip, a casing with apertures there 1n, ZLJIIIXlIlgCllZIlDbQI? andjet member- Wltlllli:

said casing, anda handle consistingtof two tubular members; with anair space between them, the mixing chamber "and ,j eti member being"- mounted on the inner, the casing being mounted onv the outenof said'tubular members, and means for conne'ctingasource of fuel supply to the lnner one otisa d members, said 1etmembenhe1ng separable from,

and extendin g; from lliSlllOllIllliIlQ" atthe inner i vend of, the fuel supply member. into the mixe; ing chamber, and. the orifieethroug h said'jet member being much smallervthan thepassage through the fuel supply membensubstan-V tially as described;

3. A! gas soldering tool ,compris'ing-a soldering tip, a casing'with apertures thereinenclosinga 3et member and m xing chamber, the soldermg tip being reinoval'aly mounted:

von said casing and adjustablethereonsoas to increase or diminish the length of: flame.

travel from the mixing. chamber, and a V handle-consisting of two tubula-nmembers v spaced from each other, the. casingkbeing mounted on the outer-of said tubular meni-f bers, and means for connecting thesiinneraoff said members with a' source .of fuelcsupply, the jet member extending into the, mixing chamber from it mounting ,in the innerg end of the fuel supply;member, its orifice; being much smaller than the ,passagethreugh the,

fuel: supply scribed I v 4. In a tool oftheclass described com'-. prising a handle, a casing, mixing ,chamber,

1' e1: member; anda; soldering tip, of-1= a shield with aeoncave upper surfacezplaced near" the purpose described:

member, substantially," as; de

5. In a tool of the class described comprising a handle, a casing, mixing chamber, jet member and a soldering tip, of a shield with a concave upper surface placed near the tip of the mixing chamber, the handle consisting of two tubular members with an air space between "them, the mixing chamber and jet member being mounted on the inner of said members, and the outer tubular member supporting the casing, substantially as described.

6. In a tool of the class described comprising a handle, a casing, mixing chamber, jet member and a soldering tip, of a shield with a concave upper surface placed near or at the tip of the mixing chamber, the handle consisting of two tubular members with an air space between them, the mixing chamber and jet member being mounted on the inner of said members, and the outer tubular member supporting the casing, said casing havingelongated openings in its sides, and a series of circular openings in its base, substantially as and for the purpose described.

7. In a tool of the class described, a casing with elongated openings in its sides and a series of circular openings in its base, a soldering tip, with inclined openings therein, and removable from and adjustableon one end of said casing, a handle consisting of two hollow members with an air space between them, the outer One of which supports the other end of said casing, air openings in said outer member, and a mixing chamber with air inlets therein mounted in the inner of said tubular members, as and for the purpose described.

8. In a tool of the class described, a casing with elongated openings in its sides and a series of circular openings in its base, a soldering tip, having inclined openings, removable from and adjustable on one'end. of

said casing, a handle consisting of two hollow members with an air space between them, the outer one of which supports the other end of said casing, air openings in. said outer member, a mixing chamber with air inlets therein mounted in the inner of said tubular members, and a shield with a concave surface mounted near or at the tip of said mixing chamber, substantially as and for the purpose set forth.

9. In a tool of the class described, -a handle consisting of a wooden hand-piece, tubular members spaced from each other, a member with a contracted opening therein and a mixing chamber mounted on one of said tubular members, the casing being mounted on the other of said tubular members, a solderer adjustably and removably mounted on said casing, a shield located at or near the'tip of the mixing chamber and adjacent openings in said casing, and means for connecting a source of fuel supply with the tubular member on which are mounted the mixing chamber and the member with the contracted opening, substantially as and for the purpose set forth.

10. In a tool of the class described, a casing contracted at one end with means at said end for adjustablyattaching a soldering tip thereto at points nearer toor farther from the body of said casing, the other end being pieced by a series of air openings and adapted to have connected thereto a handle and source of fuel supply, said air openings to surround said handle and source of fuel supply at approximately their point of connection to the casing, said casing, intermediate its ends, having a plurality of openings therein, substantially as described.

In testimony whereof, I have signed my name to this specification.

CHARLES M. CARNELLI. I 

